During a biological evaluation, exposure is measured by the concentration of lead in what?

Prepare for the Pennsylvania Lead Inspector Test. Study with flashcards and multiple choice questions, each question offers hints and explanations. Get ready to pass your exam!

Exposure is assessed by how much lead is present in the material people may contact. The amount of lead tied up in the source determines how much can be released and become available for ingestion or inhalation, which is the starting point for estimating dose during a biological evaluation. The other ideas describe when or how exposure happened or the body's current state, not how much lead is actually in the exposure source. So measuring the concentration of lead in the material directly links the hazard source to potential exposure.